GB1362437A - Process for producing penicilin derivatives - Google Patents
Process for producing penicilin derivativesInfo
- Publication number
- GB1362437A GB1362437A GB2953772A GB2953772A GB1362437A GB 1362437 A GB1362437 A GB 1362437A GB 2953772 A GB2953772 A GB 2953772A GB 2953772 A GB2953772 A GB 2953772A GB 1362437 A GB1362437 A GB 1362437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- group
- sulphoxides
- acid
- reacting
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D499/00—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cephalosporin Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
1362437 Preparing penicillin esters TOYAMA CHEMICAL CO Ltd 23 June 1972 [8 July 1971] 29537/72 Heading C2A Esters of 6-acylaminopenicillanic acids and their 1-sulphoxides are prepared by reacting a salt of the said penicillanic acid or 1-sulphoxide with an imino ether salt obtained by reacting an N,N-disubstituted acid amide of Formula (I) in which R<SP>1</SP> is hydrogen or a substituted or unsubstituted alkyl, aryl, aralkyl or cycloalkyl group, and each of R<SP>2</SP> and R<SP>3</SP> is an alkyl group or R<SP>2</SP> and R<SP>3</SP> together with the common nitrogen atom form a pyrrolidine, piperidine or morpholine ring; with a chloroformate of Formula (II) in which R is -CH 2 CH 2 X, -CH 2 CHX 2 , -CH 2 CX 3 (wherein X is halogen), a succinimidomethyl group or a phthalimidomethyl group. Suitable penicillanic acid (and 1-sulphoxide) salts are the Na, K, Mg, Ca, triethyl- or tributyl - amine, N - methylmorpholine, N - ethylpiperidine, pyridine, picoline, colidine and lutidine salts of penicillin G and V and their sulphoxides and of 6-acylaminopenicillanic acids and sulphoxides thereof wherein the acyl group is thienylacetyl or phenylacetyl or the corresponding α-amino substituted group. The imino ether salt, which is not isolated, has the Formula (III) being the product of a decarboxylation reaction between the compounds (I) and (II). Preferred acid amides (I) are N,N-dimethylformamide, N,N-dimethylacetamide and N,N,-diethylformamide. The chloroformate (II) is obtained by reacting a corresponding alcohol with phosgene in the presence of an acid-binding agent. Compounds (I) and (II) are suitably reacted in amounts of from 2 to 5 moles and 1 to 1À5 moles respectively, for each mole of the penicillin in the subsequent ester-forming reaction. The penicillins can be converted to the corresponding 1-sulphoxides before or after the esterification reaction by a conventional S-oxidation procedure, e.g. with peracetic acid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP46050446A JPS5248992B1 (en) | 1971-07-08 | 1971-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1362437A true GB1362437A (en) | 1974-08-07 |
Family
ID=12859071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2953772A Expired GB1362437A (en) | 1971-07-08 | 1972-06-23 | Process for producing penicilin derivatives |
Country Status (13)
Country | Link |
---|---|
US (1) | US3825531A (en) |
JP (1) | JPS5248992B1 (en) |
AU (1) | AU463177B2 (en) |
CA (1) | CA969933A (en) |
CH (1) | CH551448A (en) |
DD (1) | DD99801A5 (en) |
DE (1) | DE2233520A1 (en) |
ES (1) | ES404601A1 (en) |
FR (1) | FR2150697B1 (en) |
GB (1) | GB1362437A (en) |
HU (1) | HU165156B (en) |
IE (1) | IE36558B1 (en) |
NL (1) | NL7209482A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061284A1 (en) * | 1981-03-23 | 1982-09-29 | Pfizer Inc. | Improved process for the preparation of penicillanic acid esters |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3808875A1 (en) * | 1988-03-17 | 1989-09-28 | Standard Elektrik Lorenz Ag | SEMICONDUCTOR ARRANGEMENT FOR GENERATING A PERIODIC BREAKING INDEX DISTRIBUTION AND / OR PERIODIC REINFORCING DISTRIBUTION |
CN104059089B (en) * | 2014-07-04 | 2016-02-10 | 江苏悦新药业有限公司 | The preparation method of a kind of 7-ADCA |
-
1971
- 1971-07-08 JP JP46050446A patent/JPS5248992B1/ja active Pending
-
1972
- 1972-06-23 GB GB2953772A patent/GB1362437A/en not_active Expired
- 1972-06-27 AU AU43936/72A patent/AU463177B2/en not_active Expired
- 1972-06-28 US US00267081A patent/US3825531A/en not_active Expired - Lifetime
- 1972-06-30 CA CA146,173A patent/CA969933A/en not_active Expired
- 1972-07-06 HU HUTO878A patent/HU165156B/hu unknown
- 1972-07-06 ES ES404601A patent/ES404601A1/en not_active Expired
- 1972-07-06 FR FR7224543A patent/FR2150697B1/fr not_active Expired
- 1972-07-06 DD DD164240A patent/DD99801A5/xx unknown
- 1972-07-07 CH CH1022872A patent/CH551448A/en not_active IP Right Cessation
- 1972-07-07 IE IE964/72A patent/IE36558B1/en unknown
- 1972-07-07 DE DE2233520A patent/DE2233520A1/en active Pending
- 1972-07-07 NL NL7209482A patent/NL7209482A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061284A1 (en) * | 1981-03-23 | 1982-09-29 | Pfizer Inc. | Improved process for the preparation of penicillanic acid esters |
Also Published As
Publication number | Publication date |
---|---|
JPS5248992B1 (en) | 1977-12-14 |
AU4393672A (en) | 1974-01-03 |
ES404601A1 (en) | 1975-06-16 |
HU165156B (en) | 1974-06-28 |
FR2150697B1 (en) | 1976-04-16 |
IE36558L (en) | 1973-01-08 |
NL7209482A (en) | 1973-01-10 |
DD99801A5 (en) | 1973-08-20 |
AU463177B2 (en) | 1975-07-17 |
DE2233520A1 (en) | 1973-01-25 |
US3825531A (en) | 1974-07-23 |
IE36558B1 (en) | 1976-12-08 |
CA969933A (en) | 1975-06-24 |
CH551448A (en) | 1974-07-15 |
FR2150697A1 (en) | 1973-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |